[Someone.SA]

since tecno is a fairly new brand, I know that things may go wrong some time. But, I get error Failed'Unlock Bootloader Fail'). idk what do we do now, someone help?
I do this link where it didnt work. 

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[maxpayne]

since tecno is a fairly new brand, I know that things may go wrong some time. But, I get error Failed'Unlock Bootloader Fail'). idk what do we do now, someone help?
I do this link where it didnt work. 

Share full screenshot

[ippnenix]

But, I get error Failed'Unlock Bootloader Fail'). 

Unisoc T606 processor? This is exactly how it happens.

[maxpayne]

Unisoc T606 processor? This is exactly how it happens.

Do you get any prompt on the phone?

[ippnenix]

Do you get any prompt on the phone?

I don't have an answer.

[Gargoyle]

Do you get any prompt on the phone?

I don't have an answer.

The manufacturer most certainly used their own key to sign.

To recognize it, you only need an extract from avbtool, the manufacturer that uses the leaked rsa4096_vbmeta.pem key

Code:

Chain Partition descriptor:
      Partition Name:          boot
      Rollback Index Location: 1
      Public key (sha1):       ea410c1b46cdb2e40e526880ff383f083bd615d5
    Chain Partition descriptor:
      Partition Name:          dtbo
      Rollback Index Location: 6
      Public key (sha1):       ea410c1b46cdb2e40e526880ff383f083bd615d5
    Chain Partition descriptor:
      Partition Name:          pm_sys
      Rollback Index Location: 10
      Public key (sha1):       e93e7d91ba1a46b81a5f15129b4dc5769bf41f26

In your case, there are keys

Code:

Chain Partition descriptor:
      Partition Name:          boot
      Rollback Index Location: 1
      Public key (sha1):       083aa35d3720b9a8bf50ac55f87f6f7135dd4e5a
    Chain Partition descriptor:
      Partition Name:          dtbo
      Rollback Index Location: 6
      Public key (sha1):       083aa35d3720b9a8bf50ac55f87f6f7135dd4e5a
    Chain Partition descriptor:
      Partition Name:          pm_sys
      Rollback Index Location: 10
      Public key (sha1):       5e89245ebc05e83848f3fb2261da3ce8ac76ca1c

[Someone.SA]

isn't all this kinda hard? can we check an easier solution or something more direct?
I can't stay on HiOS its very trash

[Someone.SA]

But, I get error Failed'Unlock Bootloader Fail'). 

Unisoc T606 processor? This is exactly how it happens.

Do you got workarounds?

[ippnenix]

Do you got workarounds?

Not yet.